package com.chy.springcloud.controller;

import com.chy.springcloud.pojo.Dept;
import com.chy.springcloud.service.DeptService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.*;

import java.util.List;

// 提供restful服务
@RestController
public class DeptController {

    @Autowired
    private DeptService deptService;

    // 获取一些配置的信息，得到具体的微服务
    @Autowired
    private DiscoveryClient discoveryClient;

    @PostMapping("/dept/add")
    public boolean addDept(@RequestBody Dept dept){
        return deptService.addDept(dept);
    }

    @GetMapping("/dept/get/{id}")
    public Dept getDept(@PathVariable("id") Long id){
        Dept dept = deptService.queryById(id);
        if (dept == null){
            throw new RuntimeException("fail");
        }
        return dept;
    }

    @GetMapping("/dept/list")
    public List<Dept> queryAll(){
        return deptService.queryAll();
    }

    // 注册进来的微服务，获取一些消息
    @GetMapping("/dept/discovery")
    public Object discovery(){
        // 获取微服务列表的清单
        List<String> services = discoveryClient.getServices();
        System.out.println("discovery => services:" + services);

        // 得到一个具体的微服务信息,通过具体的微服务id，applicationName：
        List<ServiceInstance> instances = discoveryClient.getInstances("SPRINGCLOUD-PROVIDER-DEPT");

        for (ServiceInstance instance : instances) {
            System.out.println(
                    instance.getHost()+"\t"+
                    instance.getPort()+"\t"+
                    instance.getUri()+"\t"+
                    instance.getServiceId()
            );
        }

        return this.discoveryClient;
    }
}
